Mahomet-Seymour High School

Set in Mahomet, Illinois, Mahomet-Seymour High School is a reasonably sized secondary school, run under Mahomet-Seymour CUSD 3. It hosts 1,050 students across grades 9 through 12. Compared to the state average of about 834 students per school, that is 26% above typical.

Across the 4 schools in Mahomet-Seymour CUSD 3 (3,468 students total), Mahomet-Seymour High School accounts for its share of the district's footprint.

On demographics, Mahomet-Seymour High School records that 81% of students identify as White, making the school strongly White-majority. Other groups include 6% multiracial, 6% Hispanic, 4% Asian. That is considerably more White than the county at large, where the share is closer to 64%.

On the income-and-resources front, Staff filings list 64 full-time-equivalent teachers, which works out to roughly 16.5:1 students per teacher. The state averages around 13.8:1, so this campus is higher than the state norm typical. Around 23% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. That share is south of Champaign County's rate of about 53%.

Adjusting for the school's free-and-reduced-lunch share, Mahomet-Seymour High School tracks the demographic baseline. The model predicts 58.3% given the school's FRL share; actual proficiency is 64.7%.

Zooming out to the county, ACS estimates for Champaign County put the typical household earns roughly $63,683 per year, roughly 46% of adults have completed at least a four-year degree, and roughly 7% of residents live below the federal poverty line. In all, Champaign County runs 66 public schools (combined enrollment of about 25,919 students), of which Mahomet-Seymour High School is one.

The closest other public school is Mahomet-Seymour Jr High School, roughly 0.2 miles away. Counting just inside five miles, 4 other public schools cluster around Mahomet-Seymour High School. Among the 8 schools in that immediate cluster with test data (this one included), Mahomet-Seymour High School ranks 2nd on composite proficiency, ahead of the local average of 43.1%.

The campus sits in a town-center setting.

Looking at the recent track record. Over the past 7-year window, the student count grew 14%: 919 students in 2018 compared to 1,050 in 2025. Over the same period, the White share edged down from 90% to 81%.

In the discussion threads here, the page collects discussion, questions, and updates around school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.